<template>
  <view class="goods-item">
    <!-- 这是左侧的盒子 -->
    <view class="goods-item-left">
      <radio :checked="goods.goods_state" color="#c00000" v-if="showRadio" @click="radioClickHandler"></radio>
      <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
    </view>
    <!-- 这是右侧的盒子 -->
    <view class="goods-item-right">
      <!-- //这是商品的名字 -->
      <view class="goods-name">{{goods.goods_name}}</view>
      <!-- 这是包装价格以及以后需要的标签盒子 -->
      <view class="goods-info-box">
        <!-- //这是商品的价格 -->
        <view class="goods-price">¥ {{goods.goods_price | tofixed}}</view>
        <uni-number-box :min="1" :value="goods.goods_count" @change="numChangeHandeler" v-if="showNum"></uni-number-box>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    name: "my-goods",

    props: {
      goods: {
        type: Object,
        default: {}
      },
      showRadio: {
        type: Boolean,
        //默认情况下, 不会展示 radio 组件
        default: false
      },
      showNum: {
        type: Boolean,
        default: false
      },


    },

    filters: {
      tofixed(num) {
        return Number(num).toFixed(2)
      }
    },

    data() {
      return {

        // 默认的空图片
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'

      };
    },
    methods: {
      //这是 radio 组件的 点击事件处理函数
      radioClickHandler() {
        // 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
        // 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
        this.$emit('radio-change', {
          goods_id: this.goods.goods_id,
          goods_state: !this.goods.goods_state
        })
      },

      // 监听到了 NumberBox 组件的 change 事件处理函数
      numChangeHandeler(val) {
        // console.log(val),
        //通过 this.$emit() 触发外界通过 @绑定的 num-change 事件
        this.$emit('num-change', {
          //商品的 Id
          goods_id: this.goods.goods_id,
          //商品的最新数量
          goods_count: +val
        })
      },

    },



  }
</script>

<style lang="scss">
  .goods-item {
    width: 750rpx;
    box-sizing: border-box;
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #DDDDDD;

    .goods-item-left {
      margin-right: 5px;
      display: flex;
      justify-content: space-between;
      align-items: center;

      .goods-pic {
        width: 100px;
        height: 100px;
        display: block;
      }
    }

    .goods-item-right {
      display: flex;
      flex: 1;
      justify-content: space-between;
      flex-direction: column;

      .goods-name {
        font-size: 13px;
      }

      .goods-info-box {
        display: flex;
        justify-content: space-between;
        align-items: center;

        .goods-price {
          font-size: 13px;
          color: #C00000;
        }
      }
    }
  }
</style>